def log(func):
def wrapper():
print("开始执行")
func()
print("执行完毕")
return wrapper
def log_in(func):
def wrapper():
print("开始进入...")
func()
print("结束...")
return wrapper
@log
@log_in
def hello():
print('hello world')
if __name__ == '__main__':
hello()
def log(func):
def wrapper():
print("开始执行")
func()
print("执行完毕")
return wrapper
def log_in(func):
def wrapper():
print("开始进入...")
func()
print("结束...")
return wrapper
@log
@log_in
def hello():
print('hello world')
if __name__ == '__main__':
hello()